Order an SMS/text message bundle for your organization via the order form on the Partner Support Portal (soon available). Prices depend on the size of the bundle and vary by country. One bundle contains a fixed number of text messages (prepaid) and applies to all users of the organization. If the SMS/text messaging limit is almost reached, every user will be informed by email and by a notification in the application.
Use rules to limit the number of SMS/Text messages sent to you (personal rules) or to people in your organization (organizational rules).